/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 03:38:03,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 03:38:03,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 03:38:03,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 03:38:03,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 03:38:03,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 03:38:03,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 03:38:03,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 03:38:03,041 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 03:38:03,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 03:38:03,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 03:38:03,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 03:38:03,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 03:38:03,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 03:38:03,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 03:38:03,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 03:38:03,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 03:38:03,049 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 03:38:03,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 03:38:03,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 03:38:03,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 03:38:03,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 03:38:03,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 03:38:03,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 03:38:03,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 03:38:03,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 03:38:03,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 03:38:03,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 03:38:03,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 03:38:03,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 03:38:03,062 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 03:38:03,063 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 03:38:03,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 03:38:03,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 03:38:03,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 03:38:03,066 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 03:38:03,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 03:38:03,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 03:38:03,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 03:38:03,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 03:38:03,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 03:38:03,069 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 03:38:03,083 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 03:38:03,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 03:38:03,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 03:38:03,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 03:38:03,085 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 03:38:03,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 03:38:03,086 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 03:38:03,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 03:38:03,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 03:38:03,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 03:38:03,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 03:38:03,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 03:38:03,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 03:38:03,087 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 03:38:03,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 03:38:03,088 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 03:38:03,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 03:38:03,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 03:38:03,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 03:38:03,088 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 03:38:03,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 03:38:03,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:38:03,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 03:38:03,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 03:38:03,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 03:38:03,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 03:38:03,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 03:38:03,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 03:38:03,090 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 03:38:03,460 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 03:38:03,473 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 03:38:03,477 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 03:38:03,479 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 03:38:03,479 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 03:38:03,480 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i [2019-11-07 03:38:03,543 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ac9b9851/52c93a37a9674e3ba9980aca9c4d9d65/FLAGb9356f9a0 [2019-11-07 03:38:04,335 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 03:38:04,336 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i [2019-11-07 03:38:04,371 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ac9b9851/52c93a37a9674e3ba9980aca9c4d9d65/FLAGb9356f9a0 [2019-11-07 03:38:04,895 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ac9b9851/52c93a37a9674e3ba9980aca9c4d9d65 [2019-11-07 03:38:04,916 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 03:38:04,917 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 03:38:04,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 03:38:04,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 03:38:04,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 03:38:04,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:38:04" (1/1) ... [2019-11-07 03:38:04,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bea0403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:04, skipping insertion in model container [2019-11-07 03:38:04,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:38:04" (1/1) ... [2019-11-07 03:38:04,972 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 03:38:05,171 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 03:38:07,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:38:07,103 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 03:38:07,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:38:08,017 INFO L192 MainTranslator]: Completed translation [2019-11-07 03:38:08,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:08 WrapperNode [2019-11-07 03:38:08,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 03:38:08,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 03:38:08,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 03:38:08,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 03:38:08,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:08" (1/1) ... [2019-11-07 03:38:08,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:08" (1/1) ... [2019-11-07 03:38:08,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:08" (1/1) ... [2019-11-07 03:38:08,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:08" (1/1) ... [2019-11-07 03:38:08,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:08" (1/1) ... [2019-11-07 03:38:08,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:08" (1/1) ... [2019-11-07 03:38:08,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:08" (1/1) ... [2019-11-07 03:38:08,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 03:38:08,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 03:38:08,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 03:38:08,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 03:38:08,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:38:08,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 03:38:08,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 03:38:08,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-07 03:38:08,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-11-07 03:38:08,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-11-07 03:38:08,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-11-07 03:38:08,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-11-07 03:38:08,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~$Pointer$ [2019-11-07 03:38:08,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2019-11-07 03:38:08,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-11-07 03:38:08,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2019-11-07 03:38:08,466 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-11-07 03:38:08,466 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-11-07 03:38:08,467 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-11-07 03:38:08,467 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-11-07 03:38:08,467 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-11-07 03:38:08,467 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-11-07 03:38:08,467 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_and_test [2019-11-07 03:38:08,468 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-11-07 03:38:08,468 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2019-11-07 03:38:08,468 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2019-11-07 03:38:08,468 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2019-11-07 03:38:08,469 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_cmpxchg [2019-11-07 03:38:08,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __atomic_add_unless [2019-11-07 03:38:08,469 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_unless [2019-11-07 03:38:08,469 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_if_positive [2019-11-07 03:38:08,469 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find [2019-11-07 03:38:08,469 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2019-11-07 03:38:08,469 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2019-11-07 03:38:08,470 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2019-11-07 03:38:08,470 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2019-11-07 03:38:08,470 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put_mutex [2019-11-07 03:38:08,470 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2019-11-07 03:38:08,470 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pid_nr [2019-11-07 03:38:08,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-11-07 03:38:08,471 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-11-07 03:38:08,471 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-11-07 03:38:08,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-07 03:38:08,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-07 03:38:08,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-11-07 03:38:08,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-11-07 03:38:08,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-11-07 03:38:08,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-11-07 03:38:08,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-11-07 03:38:08,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-11-07 03:38:08,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-11-07 03:38:08,472 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-11-07 03:38:08,472 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-11-07 03:38:08,472 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2019-11-07 03:38:08,473 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-11-07 03:38:08,473 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-11-07 03:38:08,473 INFO L138 BoogieDeclarations]: Found implementation of procedure fdput [2019-11-07 03:38:08,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __to_fd [2019-11-07 03:38:08,473 INFO L138 BoogieDeclarations]: Found implementation of procedure fdget [2019-11-07 03:38:08,473 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-11-07 03:38:08,473 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-11-07 03:38:08,474 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_register_iommu_driver [2019-11-07 03:38:08,474 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_unregister_iommu_driver [2019-11-07 03:38:08,474 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_alloc_group_minor [2019-11-07 03:38:08,474 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_free_group_minor [2019-11-07 03:38:08,474 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_container_get [2019-11-07 03:38:08,474 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_container_release [2019-11-07 03:38:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_container_put [2019-11-07 03:38:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_unlock_and_free [2019-11-07 03:38:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_create_group [2019-11-07 03:38:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_release [2019-11-07 03:38:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_put [2019-11-07 03:38:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get [2019-11-07 03:38:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_try_get [2019-11-07 03:38:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get_from_iommu [2019-11-07 03:38:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get_from_minor [2019-11-07 03:38:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_create_device [2019-11-07 03:38:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_release [2019-11-07 03:38:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_put [2019-11-07 03:38:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_get [2019-11-07 03:38:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get_device [2019-11-07 03:38:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_whitelisted_driver [2019-11-07 03:38:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_dev_viable [2019-11-07 03:38:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_nb_add_dev [2019-11-07 03:38:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_nb_verify [2019-11-07 03:38:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_iommu_group_notifier [2019-11-07 03:38:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_add_group_dev [2019-11-07 03:38:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_get_from_dev [2019-11-07 03:38:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_data [2019-11-07 03:38:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_dev_present [2019-11-07 03:38:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_del_group_dev [2019-11-07 03:38:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_ioctl_check_extension [2019-11-07 03:38:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __vfio_container_attach_groups [2019-11-07 03:38:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_ioctl_set_iommu [2019-11-07 03:38:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_unl_ioctl [2019-11-07 03:38:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_compat_ioctl [2019-11-07 03:38:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_open [2019-11-07 03:38:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_release [2019-11-07 03:38:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_read [2019-11-07 03:38:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_write [2019-11-07 03:38:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_mmap [2019-11-07 03:38:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __vfio_group_unset_container [2019-11-07 03:38:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_unset_container [2019-11-07 03:38:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_try_dissolve_container [2019-11-07 03:38:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_set_container [2019-11-07 03:38:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_viable [2019-11-07 03:38:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get_device_fd [2019-11-07 03:38:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_unl_ioctl [2019-11-07 03:38:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_compat_ioctl [2019-11-07 03:38:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_open [2019-11-07 03:38:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_release [2019-11-07 03:38:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_release [2019-11-07 03:38:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_unl_ioctl [2019-11-07 03:38:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_read [2019-11-07 03:38:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_write [2019-11-07 03:38:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_mmap [2019-11-07 03:38:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_compat_ioctl [2019-11-07 03:38:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get_external_user [2019-11-07 03:38:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_put_external_user [2019-11-07 03:38:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_external_user_iommu_id [2019-11-07 03:38:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_external_check_extension [2019-11-07 03:38:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_devnode [2019-11-07 03:38:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_init [2019-11-07 03:38:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_cleanup [2019-11-07 03:38:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2019-11-07 03:38:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_1 [2019-11-07 03:38:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_3 [2019-11-07 03:38:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 03:38:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-11-07 03:38:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-11-07 03:38:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-11-07 03:38:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_5 [2019-11-07 03:38:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_6 [2019-11-07 03:38:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_7 [2019-11-07 03:38:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_8 [2019-11-07 03:38:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_9 [2019-11-07 03:38:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_10 [2019-11-07 03:38:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_11 [2019-11-07 03:38:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_12 [2019-11-07 03:38:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_init_13 [2019-11-07 03:38:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_deregister_14 [2019-11-07 03:38:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_del_15 [2019-11-07 03:38:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_deregister_16 [2019-11-07 03:38:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-11-07 03:38:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-11-07 03:38:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-11-07 03:38:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-11-07 03:38:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-11-07 03:38:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-11-07 03:38:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-11-07 03:38:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-11-07 03:38:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-11-07 03:38:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-11-07 03:38:08,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-11-07 03:38:08,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2019-11-07 03:38:08,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-11-07 03:38:08,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-11-07 03:38:08,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2019-11-07 03:38:08,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __fdget [2019-11-07 03:38:08,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_rwsem [2019-11-07 03:38:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-11-07 03:38:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-11-07 03:38:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-11-07 03:38:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2019-11-07 03:38:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-11-07 03:38:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2019-11-07 03:38:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-11-07 03:38:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-11-07 03:38:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-11-07 03:38:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2019-11-07 03:38:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure anon_inode_getfile [2019-11-07 03:38:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2019-11-07 03:38:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2019-11-07 03:38:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2019-11-07 03:38:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-11-07 03:38:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-11-07 03:38:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-11-07 03:38:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-11-07 03:38:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-11-07 03:38:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2019-11-07 03:38:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2019-11-07 03:38:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure fd_install [2019-11-07 03:38:08,491 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-11-07 03:38:08,491 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2019-11-07 03:38:08,491 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unused_fd_flags [2019-11-07 03:38:08,491 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2019-11-07 03:38:08,491 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_destroy [2019-11-07 03:38:08,491 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find_slowpath [2019-11-07 03:38:08,491 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_init [2019-11-07 03:38:08,491 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2019-11-07 03:38:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_for_each_dev [2019-11-07 03:38:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_get [2019-11-07 03:38:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_id [2019-11-07 03:38:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_put [2019-11-07 03:38:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_register_notifier [2019-11-07 03:38:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_unregister_notifier [2019-11-07 03:38:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure kasprintf [2019-11-07 03:38:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-11-07 03:38:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_open_1 [2019-11-07 03:38:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-11-07 03:38:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2019-11-07 03:38:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2019-11-07 03:38:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-11-07 03:38:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-11-07 03:38:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2019-11-07 03:38:08,494 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-11-07 03:38:08,494 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unused_fd [2019-11-07 03:38:08,494 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2019-11-07 03:38:08,494 INFO L138 BoogieDeclarations]: Found implementation of procedure strndup_user [2019-11-07 03:38:08,494 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2019-11-07 03:38:08,494 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2019-11-07 03:38:08,494 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2019-11-07 03:38:08,495 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-11-07 03:38:08,495 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-11-07 03:38:08,495 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-11-07 03:38:08,495 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-11-07 03:38:08,495 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-07 03:38:08,495 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-07 03:38:08,496 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-07 03:38:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 03:38:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 03:38:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-07 03:38:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-11-07 03:38:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2019-11-07 03:38:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-07 03:38:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 03:38:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 03:38:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-11-07 03:38:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2019-11-07 03:38:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2019-11-07 03:38:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-11-07 03:38:08,498 INFO L130 BoogieDeclarations]: Found specification of procedure kasprintf [2019-11-07 03:38:08,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-11-07 03:38:08,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-11-07 03:38:08,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-11-07 03:38:08,498 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-11-07 03:38:08,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 03:38:08,498 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-11-07 03:38:08,498 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-11-07 03:38:08,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 03:38:08,499 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-11-07 03:38:08,499 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-11-07 03:38:08,499 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-11-07 03:38:08,499 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-11-07 03:38:08,499 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-11-07 03:38:08,499 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-11-07 03:38:08,499 INFO L130 BoogieDeclarations]: Found specification of procedure strndup_user [2019-11-07 03:38:08,500 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-07 03:38:08,500 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-11-07 03:38:08,500 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-11-07 03:38:08,500 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-11-07 03:38:08,500 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-11-07 03:38:08,500 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2019-11-07 03:38:08,500 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2019-11-07 03:38:08,500 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-11-07 03:38:08,501 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-11-07 03:38:08,501 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_and_test [2019-11-07 03:38:08,501 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-11-07 03:38:08,501 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2019-11-07 03:38:08,501 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2019-11-07 03:38:08,501 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2019-11-07 03:38:08,501 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_cmpxchg [2019-11-07 03:38:08,501 INFO L130 BoogieDeclarations]: Found specification of procedure __atomic_add_unless [2019-11-07 03:38:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_unless [2019-11-07 03:38:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_if_positive [2019-11-07 03:38:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-11-07 03:38:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-11-07 03:38:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2019-11-07 03:38:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-11-07 03:38:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-11-07 03:38:08,503 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-11-07 03:38:08,503 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-11-07 03:38:08,503 INFO L130 BoogieDeclarations]: Found specification of procedure __init_rwsem [2019-11-07 03:38:08,503 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2019-11-07 03:38:08,503 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2019-11-07 03:38:08,503 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2019-11-07 03:38:08,503 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2019-11-07 03:38:08,503 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-11-07 03:38:08,504 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2019-11-07 03:38:08,504 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find_slowpath [2019-11-07 03:38:08,504 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2019-11-07 03:38:08,504 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2019-11-07 03:38:08,504 INFO L130 BoogieDeclarations]: Found specification of procedure idr_destroy [2019-11-07 03:38:08,504 INFO L130 BoogieDeclarations]: Found specification of procedure idr_init [2019-11-07 03:38:08,504 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find [2019-11-07 03:38:08,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 03:38:08,505 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2019-11-07 03:38:08,505 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2019-11-07 03:38:08,505 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2019-11-07 03:38:08,505 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-07 03:38:08,505 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2019-11-07 03:38:08,505 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put_mutex [2019-11-07 03:38:08,506 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2019-11-07 03:38:08,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_5 [2019-11-07 03:38:08,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_7 [2019-11-07 03:38:08,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_6 [2019-11-07 03:38:08,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_8 [2019-11-07 03:38:08,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_9 [2019-11-07 03:38:08,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_10 [2019-11-07 03:38:08,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_11 [2019-11-07 03:38:08,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-11-07 03:38:08,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-11-07 03:38:08,507 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2019-11-07 03:38:08,507 INFO L130 BoogieDeclarations]: Found specification of procedure task_pid_nr [2019-11-07 03:38:08,507 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-07 03:38:08,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-07 03:38:08,507 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-11-07 03:38:08,508 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-11-07 03:38:08,508 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-11-07 03:38:08,508 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 03:38:08,508 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 03:38:08,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 03:38:08,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-11-07 03:38:08,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-07 03:38:08,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 03:38:08,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 03:38:08,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-07 03:38:08,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-07 03:38:08,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-11-07 03:38:08,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-11-07 03:38:08,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-07 03:38:08,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-11-07 03:38:08,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-11-07 03:38:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-11-07 03:38:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-11-07 03:38:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2019-11-07 03:38:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_1 [2019-11-07 03:38:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_3 [2019-11-07 03:38:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2019-11-07 03:38:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_init_13 [2019-11-07 03:38:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2019-11-07 03:38:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2019-11-07 03:38:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_del_15 [2019-11-07 03:38:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-11-07 03:38:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2019-11-07 03:38:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2019-11-07 03:38:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-11-07 03:38:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2019-11-07 03:38:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-11-07 03:38:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2019-11-07 03:38:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-11-07 03:38:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-11-07 03:38:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-11-07 03:38:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-11-07 03:38:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-11-07 03:38:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2019-11-07 03:38:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure fdput [2019-11-07 03:38:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure __fdget [2019-11-07 03:38:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure __to_fd [2019-11-07 03:38:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure fdget [2019-11-07 03:38:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure get_unused_fd_flags [2019-11-07 03:38:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure put_unused_fd [2019-11-07 03:38:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure fd_install [2019-11-07 03:38:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure anon_inode_getfile [2019-11-07 03:38:08,514 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_for_each_dev [2019-11-07 03:38:08,514 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_get [2019-11-07 03:38:08,514 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_put [2019-11-07 03:38:08,514 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_register_notifier [2019-11-07 03:38:08,514 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_unregister_notifier [2019-11-07 03:38:08,514 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_id [2019-11-07 03:38:08,514 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2019-11-07 03:38:08,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_12 [2019-11-07 03:38:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2019-11-07 03:38:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_deregister_14 [2019-11-07 03:38:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_deregister_16 [2019-11-07 03:38:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-11-07 03:38:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-11-07 03:38:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-11-07 03:38:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-11-07 03:38:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-11-07 03:38:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-11-07 03:38:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_add_group_dev [2019-11-07 03:38:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_del_group_dev [2019-11-07 03:38:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_get_from_dev [2019-11-07 03:38:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_put [2019-11-07 03:38:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_data [2019-11-07 03:38:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_register_iommu_driver [2019-11-07 03:38:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_unregister_iommu_driver [2019-11-07 03:38:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get_external_user [2019-11-07 03:38:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_put_external_user [2019-11-07 03:38:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_external_user_iommu_id [2019-11-07 03:38:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_external_check_extension [2019-11-07 03:38:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_alloc_group_minor [2019-11-07 03:38:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_free_group_minor [2019-11-07 03:38:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_iommu_group_notifier [2019-11-07 03:38:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get [2019-11-07 03:38:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_container_get [2019-11-07 03:38:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_container_release [2019-11-07 03:38:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_container_put [2019-11-07 03:38:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_unlock_and_free [2019-11-07 03:38:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_create_group [2019-11-07 03:38:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_release [2019-11-07 03:38:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_put [2019-11-07 03:38:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_try_get [2019-11-07 03:38:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get_from_iommu [2019-11-07 03:38:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get_from_minor [2019-11-07 03:38:08,519 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_create_device [2019-11-07 03:38:08,519 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_release [2019-11-07 03:38:08,519 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_get [2019-11-07 03:38:08,519 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get_device [2019-11-07 03:38:08,519 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_whitelisted_driver [2019-11-07 03:38:08,519 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_dev_viable [2019-11-07 03:38:08,519 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_nb_add_dev [2019-11-07 03:38:08,520 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_nb_verify [2019-11-07 03:38:08,520 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_dev_present [2019-11-07 03:38:08,520 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-11-07 03:38:08,520 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_ioctl_check_extension [2019-11-07 03:38:08,520 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-11-07 03:38:08,520 INFO L130 BoogieDeclarations]: Found specification of procedure __vfio_container_attach_groups [2019-11-07 03:38:08,520 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-11-07 03:38:08,521 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-11-07 03:38:08,521 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_ioctl_set_iommu [2019-11-07 03:38:08,521 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~$Pointer$ [2019-11-07 03:38:08,521 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_unl_ioctl [2019-11-07 03:38:08,521 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_compat_ioctl [2019-11-07 03:38:08,521 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_open [2019-11-07 03:38:08,521 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_release [2019-11-07 03:38:08,521 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_read [2019-11-07 03:38:08,522 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2019-11-07 03:38:08,522 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_write [2019-11-07 03:38:08,522 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_mmap [2019-11-07 03:38:08,522 INFO L130 BoogieDeclarations]: Found specification of procedure __vfio_group_unset_container [2019-11-07 03:38:08,522 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_unset_container [2019-11-07 03:38:08,522 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_try_dissolve_container [2019-11-07 03:38:08,522 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_set_container [2019-11-07 03:38:08,522 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_viable [2019-11-07 03:38:08,523 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get_device_fd [2019-11-07 03:38:08,523 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-11-07 03:38:08,523 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_unl_ioctl [2019-11-07 03:38:08,523 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_compat_ioctl [2019-11-07 03:38:08,523 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_open [2019-11-07 03:38:08,523 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_release [2019-11-07 03:38:08,523 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_release [2019-11-07 03:38:08,523 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_unl_ioctl [2019-11-07 03:38:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_read [2019-11-07 03:38:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_write [2019-11-07 03:38:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_mmap [2019-11-07 03:38:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_compat_ioctl [2019-11-07 03:38:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_devnode [2019-11-07 03:38:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_init [2019-11-07 03:38:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_cleanup [2019-11-07 03:38:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_open_1 [2019-11-07 03:38:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-11-07 03:38:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-11-07 03:38:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 03:38:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-11-07 03:38:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-11-07 03:38:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-11-07 03:38:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-11-07 03:38:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-11-07 03:38:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-11-07 03:38:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-11-07 03:38:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 03:38:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 03:38:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 03:38:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-07 03:38:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 03:38:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-07 03:38:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-07 03:38:08,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-11-07 03:38:08,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-11-07 03:38:09,632 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-11-07 03:38:14,158 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-11-07 03:38:18,331 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 03:38:18,331 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-07 03:38:18,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:38:18 BoogieIcfgContainer [2019-11-07 03:38:18,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 03:38:18,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 03:38:18,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 03:38:18,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 03:38:18,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:38:04" (1/3) ... [2019-11-07 03:38:18,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bea2e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:38:18, skipping insertion in model container [2019-11-07 03:38:18,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:38:08" (2/3) ... [2019-11-07 03:38:18,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bea2e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:38:18, skipping insertion in model container [2019-11-07 03:38:18,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:38:18" (3/3) ... [2019-11-07 03:38:18,345 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i [2019-11-07 03:38:18,356 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 03:38:18,368 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 03:38:18,381 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 03:38:18,423 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 03:38:18,423 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 03:38:18,423 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 03:38:18,425 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 03:38:18,425 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 03:38:18,425 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 03:38:18,426 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 03:38:18,426 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 03:38:18,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1643 states. [2019-11-07 03:38:18,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2019-11-07 03:38:18,523 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:38:18,524 INFO L410 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 10, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:38:18,526 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:38:18,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:38:18,531 INFO L82 PathProgramCache]: Analyzing trace with hash 801380073, now seen corresponding path program 1 times [2019-11-07 03:38:18,540 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:38:18,540 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804673844] [2019-11-07 03:38:18,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:38:19,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:38:19,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1112 trivial. 0 not checked. [2019-11-07 03:38:19,748 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804673844] [2019-11-07 03:38:19,749 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:38:19,750 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 03:38:19,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047521702] [2019-11-07 03:38:19,759 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 03:38:19,759 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:38:19,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 03:38:19,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:38:19,777 INFO L87 Difference]: Start difference. First operand 1643 states. Second operand 3 states. [2019-11-07 03:38:20,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:38:20,993 INFO L93 Difference]: Finished difference Result 3543 states and 4808 transitions. [2019-11-07 03:38:20,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 03:38:20,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 286 [2019-11-07 03:38:20,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:38:21,047 INFO L225 Difference]: With dead ends: 3543 [2019-11-07 03:38:21,047 INFO L226 Difference]: Without dead ends: 2326 [2019-11-07 03:38:21,065 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:38:21,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2326 states. [2019-11-07 03:38:21,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2326 to 2323. [2019-11-07 03:38:21,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2323 states. [2019-11-07 03:38:21,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2323 states to 2323 states and 3040 transitions. [2019-11-07 03:38:21,362 INFO L78 Accepts]: Start accepts. Automaton has 2323 states and 3040 transitions. Word has length 286 [2019-11-07 03:38:21,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:38:21,369 INFO L462 AbstractCegarLoop]: Abstraction has 2323 states and 3040 transitions. [2019-11-07 03:38:21,370 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 03:38:21,370 INFO L276 IsEmpty]: Start isEmpty. Operand 2323 states and 3040 transitions. [2019-11-07 03:38:21,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2019-11-07 03:38:21,388 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:38:21,388 INFO L410 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 12, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:38:21,389 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:38:21,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:38:21,389 INFO L82 PathProgramCache]: Analyzing trace with hash 80821531, now seen corresponding path program 1 times [2019-11-07 03:38:21,389 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:38:21,389 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191120008] [2019-11-07 03:38:21,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:38:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:38:21,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1240 trivial. 0 not checked. [2019-11-07 03:38:21,976 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191120008] [2019-11-07 03:38:21,977 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:38:21,977 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 03:38:21,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215869567] [2019-11-07 03:38:21,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 03:38:21,980 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:38:21,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 03:38:21,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:38:21,982 INFO L87 Difference]: Start difference. First operand 2323 states and 3040 transitions. Second operand 3 states. [2019-11-07 03:38:22,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:38:22,244 INFO L93 Difference]: Finished difference Result 6820 states and 9127 transitions. [2019-11-07 03:38:22,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 03:38:22,245 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 296 [2019-11-07 03:38:22,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:38:22,301 INFO L225 Difference]: With dead ends: 6820 [2019-11-07 03:38:22,302 INFO L226 Difference]: Without dead ends: 4529 [2019-11-07 03:38:22,399 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:38:22,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4529 states. [2019-11-07 03:38:22,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4529 to 4517. [2019-11-07 03:38:22,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4517 states. [2019-11-07 03:38:22,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4517 states to 4517 states and 5960 transitions. [2019-11-07 03:38:22,654 INFO L78 Accepts]: Start accepts. Automaton has 4517 states and 5960 transitions. Word has length 296 [2019-11-07 03:38:22,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:38:22,655 INFO L462 AbstractCegarLoop]: Abstraction has 4517 states and 5960 transitions. [2019-11-07 03:38:22,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 03:38:22,655 INFO L276 IsEmpty]: Start isEmpty. Operand 4517 states and 5960 transitions. [2019-11-07 03:38:22,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2019-11-07 03:38:22,673 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:38:22,674 INFO L410 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 10, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:38:22,675 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:38:22,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:38:22,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1082904808, now seen corresponding path program 1 times [2019-11-07 03:38:22,675 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:38:22,676 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757070859] [2019-11-07 03:38:22,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:38:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:38:23,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1112 trivial. 0 not checked. [2019-11-07 03:38:23,340 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757070859] [2019-11-07 03:38:23,340 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:38:23,341 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 03:38:23,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360253844] [2019-11-07 03:38:23,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 03:38:23,342 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:38:23,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 03:38:23,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:38:23,342 INFO L87 Difference]: Start difference. First operand 4517 states and 5960 transitions. Second operand 3 states. [2019-11-07 03:38:23,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:38:23,668 INFO L93 Difference]: Finished difference Result 8889 states and 11702 transitions. [2019-11-07 03:38:23,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 03:38:23,668 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 310 [2019-11-07 03:38:23,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:38:23,708 INFO L225 Difference]: With dead ends: 8889 [2019-11-07 03:38:23,708 INFO L226 Difference]: Without dead ends: 4445 [2019-11-07 03:38:23,731 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:38:23,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4445 states. [2019-11-07 03:38:24,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4445 to 4445. [2019-11-07 03:38:24,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4445 states. [2019-11-07 03:38:24,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4445 states to 4445 states and 5836 transitions. [2019-11-07 03:38:24,076 INFO L78 Accepts]: Start accepts. Automaton has 4445 states and 5836 transitions. Word has length 310 [2019-11-07 03:38:24,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:38:24,077 INFO L462 AbstractCegarLoop]: Abstraction has 4445 states and 5836 transitions. [2019-11-07 03:38:24,077 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 03:38:24,077 INFO L276 IsEmpty]: Start isEmpty. Operand 4445 states and 5836 transitions. [2019-11-07 03:38:24,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2019-11-07 03:38:24,088 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:38:24,089 INFO L410 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:38:24,089 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:38:24,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:38:24,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1143509776, now seen corresponding path program 1 times [2019-11-07 03:38:24,090 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:38:24,090 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435715164] [2019-11-07 03:38:24,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:38:24,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:38:24,553 INFO L134 CoverageAnalysis]: Checked inductivity of 1110 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1110 trivial. 0 not checked. [2019-11-07 03:38:24,553 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435715164] [2019-11-07 03:38:24,554 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:38:24,554 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 03:38:24,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895697131] [2019-11-07 03:38:24,555 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 03:38:24,555 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:38:24,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 03:38:24,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:38:24,556 INFO L87 Difference]: Start difference. First operand 4445 states and 5836 transitions. Second operand 3 states. [2019-11-07 03:38:24,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:38:24,862 INFO L93 Difference]: Finished difference Result 8673 states and 11326 transitions. [2019-11-07 03:38:24,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 03:38:24,862 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 306 [2019-11-07 03:38:24,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:38:24,902 INFO L225 Difference]: With dead ends: 8673 [2019-11-07 03:38:24,903 INFO L226 Difference]: Without dead ends: 4301 [2019-11-07 03:38:24,929 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:38:24,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4301 states. [2019-11-07 03:38:25,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4301 to 4301. [2019-11-07 03:38:25,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4301 states. [2019-11-07 03:38:25,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 5584 transitions. [2019-11-07 03:38:25,265 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 5584 transitions. Word has length 306 [2019-11-07 03:38:25,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:38:25,266 INFO L462 AbstractCegarLoop]: Abstraction has 4301 states and 5584 transitions. [2019-11-07 03:38:25,267 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 03:38:25,267 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 5584 transitions. [2019-11-07 03:38:25,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2019-11-07 03:38:25,285 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:38:25,285 INFO L410 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:38:25,286 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:38:25,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:38:25,286 INFO L82 PathProgramCache]: Analyzing trace with hash -48768733, now seen corresponding path program 1 times [2019-11-07 03:38:25,287 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:38:25,287 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378903341] [2019-11-07 03:38:25,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:38:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:38:25,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1120 trivial. 0 not checked. [2019-11-07 03:38:25,887 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378903341] [2019-11-07 03:38:25,888 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:38:25,889 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 03:38:25,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253681688] [2019-11-07 03:38:25,890 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 03:38:25,891 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:38:25,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 03:38:25,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:38:25,891 INFO L87 Difference]: Start difference. First operand 4301 states and 5584 transitions. Second operand 3 states. [2019-11-07 03:38:26,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:38:26,212 INFO L93 Difference]: Finished difference Result 6692 states and 8653 transitions. [2019-11-07 03:38:26,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 03:38:26,212 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 330 [2019-11-07 03:38:26,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:38:26,231 INFO L225 Difference]: With dead ends: 6692 [2019-11-07 03:38:26,232 INFO L226 Difference]: Without dead ends: 2464 [2019-11-07 03:38:26,250 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:38:26,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2464 states. [2019-11-07 03:38:26,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2464 to 2405. [2019-11-07 03:38:26,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2405 states. [2019-11-07 03:38:26,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2405 states to 2405 states and 3095 transitions. [2019-11-07 03:38:26,396 INFO L78 Accepts]: Start accepts. Automaton has 2405 states and 3095 transitions. Word has length 330 [2019-11-07 03:38:26,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:38:26,398 INFO L462 AbstractCegarLoop]: Abstraction has 2405 states and 3095 transitions. [2019-11-07 03:38:26,398 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 03:38:26,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2405 states and 3095 transitions. [2019-11-07 03:38:26,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2019-11-07 03:38:26,412 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:38:26,413 INFO L410 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:38:26,413 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:38:26,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:38:26,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1483249698, now seen corresponding path program 1 times [2019-11-07 03:38:26,414 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:38:26,415 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413455877] [2019-11-07 03:38:26,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:38:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:38:27,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1254 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1252 trivial. 0 not checked. [2019-11-07 03:38:27,774 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413455877] [2019-11-07 03:38:27,775 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:38:27,775 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 03:38:27,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909808619] [2019-11-07 03:38:27,776 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 03:38:27,776 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:38:27,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 03:38:27,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 03:38:27,777 INFO L87 Difference]: Start difference. First operand 2405 states and 3095 transitions. Second operand 5 states. [2019-11-07 03:38:29,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:38:29,619 INFO L93 Difference]: Finished difference Result 4733 states and 6082 transitions. [2019-11-07 03:38:29,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 03:38:29,620 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 399 [2019-11-07 03:38:29,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:38:29,634 INFO L225 Difference]: With dead ends: 4733 [2019-11-07 03:38:29,635 INFO L226 Difference]: Without dead ends: 2414 [2019-11-07 03:38:29,644 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 03:38:29,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2019-11-07 03:38:29,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 2409. [2019-11-07 03:38:29,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2409 states. [2019-11-07 03:38:29,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2409 states to 2409 states and 3098 transitions. [2019-11-07 03:38:29,767 INFO L78 Accepts]: Start accepts. Automaton has 2409 states and 3098 transitions. Word has length 399 [2019-11-07 03:38:29,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:38:29,768 INFO L462 AbstractCegarLoop]: Abstraction has 2409 states and 3098 transitions. [2019-11-07 03:38:29,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 03:38:29,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2409 states and 3098 transitions. [2019-11-07 03:38:29,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2019-11-07 03:38:29,787 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:38:29,788 INFO L410 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:38:29,789 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:38:29,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:38:29,789 INFO L82 PathProgramCache]: Analyzing trace with hash -684526696, now seen corresponding path program 1 times [2019-11-07 03:38:29,790 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:38:29,790 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263023847] [2019-11-07 03:38:29,791 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:38:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:38:30,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1400 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1398 trivial. 0 not checked. [2019-11-07 03:38:30,474 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263023847] [2019-11-07 03:38:30,474 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:38:30,474 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 03:38:30,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430213388] [2019-11-07 03:38:30,476 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 03:38:30,476 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:38:30,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 03:38:30,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:38:30,477 INFO L87 Difference]: Start difference. First operand 2409 states and 3098 transitions. Second operand 3 states. [2019-11-07 03:38:33,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:38:33,018 INFO L93 Difference]: Finished difference Result 5920 states and 7612 transitions. [2019-11-07 03:38:33,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 03:38:33,019 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 437 [2019-11-07 03:38:33,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:38:33,042 INFO L225 Difference]: With dead ends: 5920 [2019-11-07 03:38:33,042 INFO L226 Difference]: Without dead ends: 3601 [2019-11-07 03:38:33,053 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:38:33,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3601 states. [2019-11-07 03:38:33,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3601 to 3540. [2019-11-07 03:38:33,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3540 states. [2019-11-07 03:38:33,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3540 states to 3540 states and 4543 transitions. [2019-11-07 03:38:33,240 INFO L78 Accepts]: Start accepts. Automaton has 3540 states and 4543 transitions. Word has length 437 [2019-11-07 03:38:33,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:38:33,241 INFO L462 AbstractCegarLoop]: Abstraction has 3540 states and 4543 transitions. [2019-11-07 03:38:33,241 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 03:38:33,241 INFO L276 IsEmpty]: Start isEmpty. Operand 3540 states and 4543 transitions. [2019-11-07 03:38:33,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2019-11-07 03:38:33,254 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:38:33,255 INFO L410 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:38:33,255 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:38:33,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:38:33,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1721567402, now seen corresponding path program 1 times [2019-11-07 03:38:33,256 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:38:33,256 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459274677] [2019-11-07 03:38:33,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:38:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:38:33,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1402 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1402 trivial. 0 not checked. [2019-11-07 03:38:33,867 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459274677] [2019-11-07 03:38:33,867 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:38:33,867 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 03:38:33,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348157546] [2019-11-07 03:38:33,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 03:38:33,869 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:38:33,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 03:38:33,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:38:33,870 INFO L87 Difference]: Start difference. First operand 3540 states and 4543 transitions. Second operand 3 states. [2019-11-07 03:38:34,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:38:34,093 INFO L93 Difference]: Finished difference Result 7018 states and 9220 transitions. [2019-11-07 03:38:34,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 03:38:34,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 438 [2019-11-07 03:38:34,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:38:34,138 INFO L225 Difference]: With dead ends: 7018 [2019-11-07 03:38:34,141 INFO L226 Difference]: Without dead ends: 3568 [2019-11-07 03:38:34,163 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:38:34,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3568 states. [2019-11-07 03:38:34,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3568 to 3552. [2019-11-07 03:38:34,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3552 states. [2019-11-07 03:38:34,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3552 states to 3552 states and 4559 transitions. [2019-11-07 03:38:34,419 INFO L78 Accepts]: Start accepts. Automaton has 3552 states and 4559 transitions. Word has length 438 [2019-11-07 03:38:34,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:38:34,420 INFO L462 AbstractCegarLoop]: Abstraction has 3552 states and 4559 transitions. [2019-11-07 03:38:34,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 03:38:34,420 INFO L276 IsEmpty]: Start isEmpty. Operand 3552 states and 4559 transitions. [2019-11-07 03:38:34,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2019-11-07 03:38:34,434 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:38:34,435 INFO L410 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:38:34,435 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:38:34,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:38:34,435 INFO L82 PathProgramCache]: Analyzing trace with hash 191845876, now seen corresponding path program 1 times [2019-11-07 03:38:34,436 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:38:34,436 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266141801] [2019-11-07 03:38:34,436 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY